Each rating has it disadvantages. Even if ELO or USCF is fine for OTB chess, in online chess, it could always be leading to "unfair" ratings with a lot of games against much weaker or stronger opponent. In real chess, you never play 500 games against an opponent rated 500 elo below you in your entire life. Here, this could happened within a month. What's more, in real life, you need quite a lot of time and money to get an "established" elo rating. Here, you can be rated 2000+ without spending one haleru :-)

I must say I find the rating fine, thanks Fencer for your good job :-)